./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 07:10:07,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 07:10:07,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 07:10:07,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 07:10:07,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 07:10:07,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 07:10:07,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 07:10:07,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 07:10:07,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 07:10:07,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 07:10:07,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 07:10:07,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 07:10:07,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 07:10:07,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 07:10:07,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 07:10:07,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 07:10:07,209 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 07:10:07,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 07:10:07,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 07:10:07,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 07:10:07,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 07:10:07,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 07:10:07,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 07:10:07,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 07:10:07,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 07:10:07,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 07:10:07,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 07:10:07,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 07:10:07,229 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 07:10:07,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 07:10:07,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 07:10:07,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 07:10:07,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 07:10:07,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 07:10:07,232 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 07:10:07,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 07:10:07,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 07:10:07,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 07:10:07,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 07:10:07,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 07:10:07,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 07:10:07,236 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-09-01 07:10:07,256 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 07:10:07,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 07:10:07,257 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 07:10:07,257 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 07:10:07,258 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 07:10:07,258 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 07:10:07,259 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 07:10:07,259 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 07:10:07,259 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 07:10:07,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 07:10:07,260 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 07:10:07,260 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-09-01 07:10:07,260 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 07:10:07,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 07:10:07,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 07:10:07,261 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 07:10:07,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 07:10:07,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 07:10:07,262 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-09-01 07:10:07,262 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 07:10:07,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 07:10:07,262 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 07:10:07,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 07:10:07,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 07:10:07,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 07:10:07,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 07:10:07,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 07:10:07,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 07:10:07,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 07:10:07,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 07:10:07,264 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 07:10:07,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 07:10:07,265 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 07:10:07,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 07:10:07,265 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 07:10:07,265 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 07:10:07,266 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 07:10:07,266 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 07:10:07,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 07:10:07,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 07:10:07,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 07:10:07,579 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 07:10:07,579 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 07:10:07,580 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i [2023-09-01 07:10:08,844 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 07:10:09,175 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 07:10:09,175 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i [2023-09-01 07:10:09,194 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c5cbeae9/c37500b1d49842c48c44e2a280bfa11f/FLAG718ed5e54 [2023-09-01 07:10:09,211 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c5cbeae9/c37500b1d49842c48c44e2a280bfa11f [2023-09-01 07:10:09,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 07:10:09,215 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 07:10:09,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 07:10:09,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 07:10:09,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 07:10:09,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 07:10:09" (1/1) ... [2023-09-01 07:10:09,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c8cf3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:10:09, skipping insertion in model container [2023-09-01 07:10:09,225 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 07:10:09" (1/1) ... [2023-09-01 07:10:09,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 07:10:09,281 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 07:10:09,763 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2023-09-01 07:10:09,810 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 07:10:09,827 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 07:10:09,887 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_94-alloc_region_racing.i[58135,58148] [2023-09-01 07:10:09,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 07:10:10,000 INFO L208 MainTranslator]: Completed translation [2023-09-01 07:10:10,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:10:10 WrapperNode [2023-09-01 07:10:10,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 07:10:10,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 07:10:10,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 07:10:10,002 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 07:10:10,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:10:10" (1/1) ... [2023-09-01 07:10:10,038 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:10:10" (1/1) ... [2023-09-01 07:10:10,086 INFO L138 Inliner]: procedures = 377, calls = 72, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 250 [2023-09-01 07:10:10,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 07:10:10,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 07:10:10,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 07:10:10,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 07:10:10,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:10:10" (1/1) ... [2023-09-01 07:10:10,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:10:10" (1/1) ... [2023-09-01 07:10:10,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:10:10" (1/1) ... [2023-09-01 07:10:10,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:10:10" (1/1) ... [2023-09-01 07:10:10,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:10:10" (1/1) ... [2023-09-01 07:10:10,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:10:10" (1/1) ... [2023-09-01 07:10:10,144 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:10:10" (1/1) ... [2023-09-01 07:10:10,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:10:10" (1/1) ... [2023-09-01 07:10:10,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 07:10:10,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 07:10:10,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 07:10:10,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 07:10:10,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:10:10" (1/1) ... [2023-09-01 07:10:10,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 07:10:10,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 07:10:10,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-01 07:10:10,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-01 07:10:10,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 07:10:10,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-09-01 07:10:10,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 07:10:10,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-09-01 07:10:10,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 07:10:10,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 07:10:10,246 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 07:10:10,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-09-01 07:10:10,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 07:10:10,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-09-01 07:10:10,247 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 07:10:10,247 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 07:10:10,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 07:10:10,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 07:10:10,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 07:10:10,249 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 07:10:10,456 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 07:10:10,458 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 07:10:10,820 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 07:10:10,827 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 07:10:10,827 INFO L302 CfgBuilder]: Removed 23 assume(true) statements. [2023-09-01 07:10:10,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 07:10:10 BoogieIcfgContainer [2023-09-01 07:10:10,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 07:10:10,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 07:10:10,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 07:10:10,850 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 07:10:10,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 07:10:09" (1/3) ... [2023-09-01 07:10:10,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a6a5236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 07:10:10, skipping insertion in model container [2023-09-01 07:10:10,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 07:10:10" (2/3) ... [2023-09-01 07:10:10,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a6a5236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 07:10:10, skipping insertion in model container [2023-09-01 07:10:10,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 07:10:10" (3/3) ... [2023-09-01 07:10:10,852 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_94-alloc_region_racing.i [2023-09-01 07:10:10,859 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 07:10:10,875 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 07:10:10,876 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-09-01 07:10:10,876 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 07:10:11,004 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-09-01 07:10:11,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 236 places, 262 transitions, 532 flow [2023-09-01 07:10:11,185 INFO L130 PetriNetUnfolder]: 45/372 cut-off events. [2023-09-01 07:10:11,186 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 07:10:11,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 372 events. 45/372 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1137 event pairs, 0 based on Foata normal form. 0/308 useless extension candidates. Maximal degree in co-relation 204. Up to 8 conditions per place. [2023-09-01 07:10:11,195 INFO L82 GeneralOperation]: Start removeDead. Operand has 236 places, 262 transitions, 532 flow [2023-09-01 07:10:11,203 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 228 places, 253 transitions, 511 flow [2023-09-01 07:10:11,210 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 07:10:11,232 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 228 places, 253 transitions, 511 flow [2023-09-01 07:10:11,236 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 228 places, 253 transitions, 511 flow [2023-09-01 07:10:11,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 253 transitions, 511 flow [2023-09-01 07:10:11,304 INFO L130 PetriNetUnfolder]: 44/363 cut-off events. [2023-09-01 07:10:11,305 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 07:10:11,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 368 conditions, 363 events. 44/363 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1089 event pairs, 0 based on Foata normal form. 0/301 useless extension candidates. Maximal degree in co-relation 204. Up to 8 conditions per place. [2023-09-01 07:10:11,320 INFO L119 LiptonReduction]: Number of co-enabled transitions 20400 [2023-09-01 07:10:21,458 INFO L134 LiptonReduction]: Checked pairs total: 45838 [2023-09-01 07:10:21,458 INFO L136 LiptonReduction]: Total number of compositions: 200 [2023-09-01 07:10:21,483 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 07:10:21,490 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@60cdc9ac, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 07:10:21,491 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-01 07:10:21,496 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2023-09-01 07:10:21,496 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 07:10:21,496 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:10:21,497 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-09-01 07:10:21,497 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 07:10:21,501 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:10:21,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1685400076, now seen corresponding path program 1 times [2023-09-01 07:10:21,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:10:21,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98789629] [2023-09-01 07:10:21,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:10:21,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:10:21,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 07:10:21,675 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 07:10:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 07:10:21,755 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 07:10:21,757 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 07:10:21,758 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-01 07:10:21,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 07:10:21,760 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 07:10:21,763 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-09-01 07:10:21,764 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 07:10:21,764 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-09-01 07:10:21,814 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-09-01 07:10:21,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 312 places, 349 transitions, 716 flow [2023-09-01 07:10:21,932 INFO L130 PetriNetUnfolder]: 76/605 cut-off events. [2023-09-01 07:10:21,932 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-09-01 07:10:21,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 605 events. 76/605 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2427 event pairs, 0 based on Foata normal form. 0/495 useless extension candidates. Maximal degree in co-relation 374. Up to 12 conditions per place. [2023-09-01 07:10:21,940 INFO L82 GeneralOperation]: Start removeDead. Operand has 312 places, 349 transitions, 716 flow [2023-09-01 07:10:21,945 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 312 places, 349 transitions, 716 flow [2023-09-01 07:10:21,945 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 07:10:21,945 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 312 places, 349 transitions, 716 flow [2023-09-01 07:10:21,946 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 312 places, 349 transitions, 716 flow [2023-09-01 07:10:21,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 312 places, 349 transitions, 716 flow [2023-09-01 07:10:22,036 INFO L130 PetriNetUnfolder]: 76/605 cut-off events. [2023-09-01 07:10:22,038 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2023-09-01 07:10:22,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 605 events. 76/605 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2427 event pairs, 0 based on Foata normal form. 0/495 useless extension candidates. Maximal degree in co-relation 374. Up to 12 conditions per place. [2023-09-01 07:10:22,072 INFO L119 LiptonReduction]: Number of co-enabled transitions 58480 [2023-09-01 07:10:32,781 INFO L134 LiptonReduction]: Checked pairs total: 151294 [2023-09-01 07:10:32,782 INFO L136 LiptonReduction]: Total number of compositions: 269 [2023-09-01 07:10:32,784 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 07:10:32,785 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@60cdc9ac, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 07:10:32,785 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-01 07:10:32,790 INFO L130 PetriNetUnfolder]: 0/39 cut-off events. [2023-09-01 07:10:32,791 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-09-01 07:10:32,791 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:10:32,791 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-09-01 07:10:32,791 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 07:10:32,792 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:10:32,792 INFO L85 PathProgramCache]: Analyzing trace with hash -881625724, now seen corresponding path program 1 times [2023-09-01 07:10:32,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:10:32,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373501727] [2023-09-01 07:10:32,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:10:32,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:10:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 07:10:32,873 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 07:10:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 07:10:32,936 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 07:10:32,941 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 07:10:32,941 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-01 07:10:32,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-01 07:10:32,941 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 07:10:32,942 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-09-01 07:10:32,943 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 07:10:32,943 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-09-01 07:10:33,001 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-09-01 07:10:33,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 388 places, 436 transitions, 902 flow [2023-09-01 07:10:33,195 INFO L130 PetriNetUnfolder]: 112/877 cut-off events. [2023-09-01 07:10:33,196 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-09-01 07:10:33,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 905 conditions, 877 events. 112/877 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4078 event pairs, 1 based on Foata normal form. 0/713 useless extension candidates. Maximal degree in co-relation 613. Up to 16 conditions per place. [2023-09-01 07:10:33,211 INFO L82 GeneralOperation]: Start removeDead. Operand has 388 places, 436 transitions, 902 flow [2023-09-01 07:10:33,219 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 388 places, 436 transitions, 902 flow [2023-09-01 07:10:33,220 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 07:10:33,220 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 388 places, 436 transitions, 902 flow [2023-09-01 07:10:33,221 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 388 places, 436 transitions, 902 flow [2023-09-01 07:10:33,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 388 places, 436 transitions, 902 flow [2023-09-01 07:10:33,401 INFO L130 PetriNetUnfolder]: 112/877 cut-off events. [2023-09-01 07:10:33,402 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2023-09-01 07:10:33,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 905 conditions, 877 events. 112/877 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4078 event pairs, 1 based on Foata normal form. 0/713 useless extension candidates. Maximal degree in co-relation 613. Up to 16 conditions per place. [2023-09-01 07:10:33,489 INFO L119 LiptonReduction]: Number of co-enabled transitions 110160 [2023-09-01 07:10:44,206 INFO L134 LiptonReduction]: Checked pairs total: 267599 [2023-09-01 07:10:44,207 INFO L136 LiptonReduction]: Total number of compositions: 333 [2023-09-01 07:10:44,208 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 07:10:44,209 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@60cdc9ac, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 07:10:44,209 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-01 07:10:44,216 INFO L130 PetriNetUnfolder]: 8/88 cut-off events. [2023-09-01 07:10:44,217 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-09-01 07:10:44,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:10:44,217 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-09-01 07:10:44,217 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 07:10:44,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:10:44,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1751128805, now seen corresponding path program 1 times [2023-09-01 07:10:44,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:10:44,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824534299] [2023-09-01 07:10:44,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:10:44,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:10:44,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 07:10:44,272 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 07:10:44,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 07:10:44,314 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 07:10:44,321 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 07:10:44,322 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-01 07:10:44,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-01 07:10:44,323 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 07:10:44,323 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-09-01 07:10:44,324 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 07:10:44,324 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-09-01 07:10:44,367 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-09-01 07:10:44,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 464 places, 523 transitions, 1090 flow [2023-09-01 07:10:44,676 INFO L130 PetriNetUnfolder]: 160/1229 cut-off events. [2023-09-01 07:10:44,676 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2023-09-01 07:10:44,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1284 conditions, 1229 events. 160/1229 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 6151 event pairs, 6 based on Foata normal form. 0/995 useless extension candidates. Maximal degree in co-relation 897. Up to 32 conditions per place. [2023-09-01 07:10:44,699 INFO L82 GeneralOperation]: Start removeDead. Operand has 464 places, 523 transitions, 1090 flow [2023-09-01 07:10:44,708 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 464 places, 523 transitions, 1090 flow [2023-09-01 07:10:44,708 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 07:10:44,708 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 464 places, 523 transitions, 1090 flow [2023-09-01 07:10:44,708 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 464 places, 523 transitions, 1090 flow [2023-09-01 07:10:44,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 464 places, 523 transitions, 1090 flow [2023-09-01 07:10:44,920 INFO L130 PetriNetUnfolder]: 160/1229 cut-off events. [2023-09-01 07:10:44,921 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2023-09-01 07:10:44,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1284 conditions, 1229 events. 160/1229 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 6151 event pairs, 6 based on Foata normal form. 0/995 useless extension candidates. Maximal degree in co-relation 897. Up to 32 conditions per place. [2023-09-01 07:10:45,050 INFO L119 LiptonReduction]: Number of co-enabled transitions 176800 [2023-09-01 07:10:56,919 INFO L134 LiptonReduction]: Checked pairs total: 434334 [2023-09-01 07:10:56,920 INFO L136 LiptonReduction]: Total number of compositions: 390 [2023-09-01 07:10:56,922 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 07:10:56,923 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@60cdc9ac, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 07:10:56,923 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-01 07:10:56,942 INFO L130 PetriNetUnfolder]: 35/183 cut-off events. [2023-09-01 07:10:56,943 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2023-09-01 07:10:56,943 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:10:56,943 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2023-09-01 07:10:56,943 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 07:10:56,944 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:10:56,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1871156794, now seen corresponding path program 1 times [2023-09-01 07:10:56,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:10:56,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884993408] [2023-09-01 07:10:56,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:10:56,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:10:56,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 07:10:56,981 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 07:10:57,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 07:10:57,021 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 07:10:57,027 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 07:10:57,028 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-01 07:10:57,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-01 07:10:57,028 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 07:10:57,029 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-09-01 07:10:57,029 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 07:10:57,029 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-09-01 07:10:57,079 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-09-01 07:10:57,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 540 places, 610 transitions, 1280 flow [2023-09-01 07:10:57,526 INFO L130 PetriNetUnfolder]: 236/1745 cut-off events. [2023-09-01 07:10:57,526 INFO L131 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2023-09-01 07:10:57,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1856 conditions, 1745 events. 236/1745 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 9702 event pairs, 23 based on Foata normal form. 0/1409 useless extension candidates. Maximal degree in co-relation 1274. Up to 80 conditions per place. [2023-09-01 07:10:57,568 INFO L82 GeneralOperation]: Start removeDead. Operand has 540 places, 610 transitions, 1280 flow [2023-09-01 07:10:57,587 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 540 places, 610 transitions, 1280 flow [2023-09-01 07:10:57,587 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 07:10:57,587 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 540 places, 610 transitions, 1280 flow [2023-09-01 07:10:57,588 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 540 places, 610 transitions, 1280 flow [2023-09-01 07:10:57,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 540 places, 610 transitions, 1280 flow [2023-09-01 07:10:58,012 INFO L130 PetriNetUnfolder]: 236/1745 cut-off events. [2023-09-01 07:10:58,012 INFO L131 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2023-09-01 07:10:58,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1856 conditions, 1745 events. 236/1745 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 9702 event pairs, 23 based on Foata normal form. 0/1409 useless extension candidates. Maximal degree in co-relation 1274. Up to 80 conditions per place. [2023-09-01 07:10:58,270 INFO L119 LiptonReduction]: Number of co-enabled transitions 258400 [2023-09-01 07:11:10,880 INFO L134 LiptonReduction]: Checked pairs total: 639787 [2023-09-01 07:11:10,881 INFO L136 LiptonReduction]: Total number of compositions: 457 [2023-09-01 07:11:10,885 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 07:11:10,887 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@60cdc9ac, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 07:11:10,888 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-01 07:11:10,913 INFO L130 PetriNetUnfolder]: 62/277 cut-off events. [2023-09-01 07:11:10,913 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2023-09-01 07:11:10,913 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:11:10,913 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:11:10,914 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 07:11:10,914 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:11:10,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1564818386, now seen corresponding path program 1 times [2023-09-01 07:11:10,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:11:10,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134074824] [2023-09-01 07:11:10,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:11:10,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:11:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 07:11:10,965 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 07:11:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 07:11:11,004 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 07:11:11,006 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 07:11:11,007 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-01 07:11:11,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-01 07:11:11,007 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 07:11:11,008 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-09-01 07:11:11,008 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 07:11:11,008 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-09-01 07:11:11,061 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2023-09-01 07:11:11,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 616 places, 697 transitions, 1472 flow [2023-09-01 07:11:11,841 INFO L130 PetriNetUnfolder]: 376/2597 cut-off events. [2023-09-01 07:11:11,841 INFO L131 PetriNetUnfolder]: For 242/242 co-relation queries the response was YES. [2023-09-01 07:11:11,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2829 conditions, 2597 events. 376/2597 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 16130 event pairs, 72 based on Foata normal form. 0/2095 useless extension candidates. Maximal degree in co-relation 1844. Up to 192 conditions per place. [2023-09-01 07:11:11,936 INFO L82 GeneralOperation]: Start removeDead. Operand has 616 places, 697 transitions, 1472 flow [2023-09-01 07:11:11,967 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 616 places, 697 transitions, 1472 flow [2023-09-01 07:11:11,967 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 07:11:11,968 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 616 places, 697 transitions, 1472 flow [2023-09-01 07:11:11,968 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 616 places, 697 transitions, 1472 flow [2023-09-01 07:11:11,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 616 places, 697 transitions, 1472 flow [2023-09-01 07:11:12,762 INFO L130 PetriNetUnfolder]: 376/2597 cut-off events. [2023-09-01 07:11:12,762 INFO L131 PetriNetUnfolder]: For 242/242 co-relation queries the response was YES. [2023-09-01 07:11:12,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2829 conditions, 2597 events. 376/2597 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 16130 event pairs, 72 based on Foata normal form. 0/2095 useless extension candidates. Maximal degree in co-relation 1844. Up to 192 conditions per place. [2023-09-01 07:11:13,174 INFO L119 LiptonReduction]: Number of co-enabled transitions 354960 [2023-09-01 07:11:26,868 INFO L134 LiptonReduction]: Checked pairs total: 806555 [2023-09-01 07:11:26,868 INFO L136 LiptonReduction]: Total number of compositions: 527 [2023-09-01 07:11:26,870 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 07:11:26,871 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@60cdc9ac, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 07:11:26,871 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-01 07:11:26,906 INFO L130 PetriNetUnfolder]: 80/361 cut-off events. [2023-09-01 07:11:26,907 INFO L131 PetriNetUnfolder]: For 56/56 co-relation queries the response was YES. [2023-09-01 07:11:26,907 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:11:26,907 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:11:26,907 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 07:11:26,908 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:11:26,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1925294353, now seen corresponding path program 1 times [2023-09-01 07:11:26,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:11:26,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586673142] [2023-09-01 07:11:26,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:11:26,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:11:26,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 07:11:26,939 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 07:11:26,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 07:11:26,965 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 07:11:26,966 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 07:11:26,966 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-01 07:11:26,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-01 07:11:26,966 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 07:11:26,967 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-09-01 07:11:26,967 WARN L233 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 07:11:26,967 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2023-09-01 07:11:27,026 INFO L144 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2023-09-01 07:11:27,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 692 places, 784 transitions, 1666 flow [2023-09-01 07:11:28,567 INFO L130 PetriNetUnfolder]: 660/4137 cut-off events. [2023-09-01 07:11:28,568 INFO L131 PetriNetUnfolder]: For 525/525 co-relation queries the response was YES. [2023-09-01 07:11:28,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4635 conditions, 4137 events. 660/4137 cut-off events. For 525/525 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 29449 event pairs, 201 based on Foata normal form. 0/3341 useless extension candidates. Maximal degree in co-relation 2815. Up to 448 conditions per place. [2023-09-01 07:11:28,676 INFO L82 GeneralOperation]: Start removeDead. Operand has 692 places, 784 transitions, 1666 flow [2023-09-01 07:11:28,713 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 692 places, 784 transitions, 1666 flow [2023-09-01 07:11:28,713 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 07:11:28,713 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 692 places, 784 transitions, 1666 flow [2023-09-01 07:11:28,714 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 692 places, 784 transitions, 1666 flow [2023-09-01 07:11:28,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 692 places, 784 transitions, 1666 flow [2023-09-01 07:11:30,018 INFO L130 PetriNetUnfolder]: 660/4137 cut-off events. [2023-09-01 07:11:30,018 INFO L131 PetriNetUnfolder]: For 525/525 co-relation queries the response was YES. [2023-09-01 07:11:30,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4635 conditions, 4137 events. 660/4137 cut-off events. For 525/525 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 29449 event pairs, 201 based on Foata normal form. 0/3341 useless extension candidates. Maximal degree in co-relation 2815. Up to 448 conditions per place. [2023-09-01 07:11:30,395 INFO L119 LiptonReduction]: Number of co-enabled transitions 466480 [2023-09-01 07:11:45,481 INFO L134 LiptonReduction]: Checked pairs total: 1200582 [2023-09-01 07:11:45,481 INFO L136 LiptonReduction]: Total number of compositions: 581 [2023-09-01 07:11:45,483 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 07:11:45,484 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@60cdc9ac, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 07:11:45,484 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-01 07:11:45,536 INFO L130 PetriNetUnfolder]: 105/457 cut-off events. [2023-09-01 07:11:45,537 INFO L131 PetriNetUnfolder]: For 87/87 co-relation queries the response was YES. [2023-09-01 07:11:45,537 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:11:45,537 INFO L208 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:11:45,537 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 07:11:45,537 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:11:45,538 INFO L85 PathProgramCache]: Analyzing trace with hash -661831164, now seen corresponding path program 1 times [2023-09-01 07:11:45,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:11:45,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970017557] [2023-09-01 07:11:45,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:11:45,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:11:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 07:11:45,569 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 07:11:45,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 07:11:45,597 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 07:11:45,598 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 07:11:45,598 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-01 07:11:45,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-01 07:11:45,598 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 07:11:45,599 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-09-01 07:11:45,599 WARN L233 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 07:11:45,599 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2023-09-01 07:11:45,667 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-09-01 07:11:45,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 768 places, 871 transitions, 1862 flow [2023-09-01 07:11:48,456 INFO L130 PetriNetUnfolder]: 1264/7085 cut-off events. [2023-09-01 07:11:48,457 INFO L131 PetriNetUnfolder]: For 1136/1136 co-relation queries the response was YES. [2023-09-01 07:11:48,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8170 conditions, 7085 events. 1264/7085 cut-off events. For 1136/1136 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 57604 event pairs, 522 based on Foata normal form. 0/5739 useless extension candidates. Maximal degree in co-relation 4619. Up to 1024 conditions per place. [2023-09-01 07:11:48,671 INFO L82 GeneralOperation]: Start removeDead. Operand has 768 places, 871 transitions, 1862 flow [2023-09-01 07:11:48,776 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 768 places, 871 transitions, 1862 flow [2023-09-01 07:11:48,776 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 07:11:48,777 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 768 places, 871 transitions, 1862 flow [2023-09-01 07:11:48,777 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 768 places, 871 transitions, 1862 flow [2023-09-01 07:11:48,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 768 places, 871 transitions, 1862 flow [2023-09-01 07:11:51,261 INFO L130 PetriNetUnfolder]: 1264/7085 cut-off events. [2023-09-01 07:11:51,261 INFO L131 PetriNetUnfolder]: For 1136/1136 co-relation queries the response was YES. [2023-09-01 07:11:51,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8170 conditions, 7085 events. 1264/7085 cut-off events. For 1136/1136 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 57604 event pairs, 522 based on Foata normal form. 0/5739 useless extension candidates. Maximal degree in co-relation 4619. Up to 1024 conditions per place. [2023-09-01 07:11:52,237 INFO L119 LiptonReduction]: Number of co-enabled transitions 592960 [2023-09-01 07:12:08,462 INFO L134 LiptonReduction]: Checked pairs total: 1515695 [2023-09-01 07:12:08,462 INFO L136 LiptonReduction]: Total number of compositions: 643 [2023-09-01 07:12:08,464 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 07:12:08,464 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@60cdc9ac, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 07:12:08,464 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-01 07:12:08,535 INFO L130 PetriNetUnfolder]: 132/562 cut-off events. [2023-09-01 07:12:08,535 INFO L131 PetriNetUnfolder]: For 128/128 co-relation queries the response was YES. [2023-09-01 07:12:08,535 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:12:08,536 INFO L208 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:12:08,536 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 07:12:08,536 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:12:08,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1924026758, now seen corresponding path program 1 times [2023-09-01 07:12:08,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:12:08,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539111968] [2023-09-01 07:12:08,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:12:08,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:12:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 07:12:08,570 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 07:12:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 07:12:08,601 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 07:12:08,601 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 07:12:08,602 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-01 07:12:08,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-09-01 07:12:08,602 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 07:12:08,603 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-09-01 07:12:08,603 WARN L233 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 07:12:08,603 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2023-09-01 07:12:08,677 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2023-09-01 07:12:08,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 844 places, 958 transitions, 2060 flow [2023-09-01 07:12:14,039 INFO L130 PetriNetUnfolder]: 2572/12913 cut-off events. [2023-09-01 07:12:14,039 INFO L131 PetriNetUnfolder]: For 2460/2460 co-relation queries the response was YES. [2023-09-01 07:12:14,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15290 conditions, 12913 events. 2572/12913 cut-off events. For 2460/2460 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 121752 event pairs, 1291 based on Foata normal form. 0/10505 useless extension candidates. Maximal degree in co-relation 8152. Up to 2304 conditions per place. [2023-09-01 07:12:14,509 INFO L82 GeneralOperation]: Start removeDead. Operand has 844 places, 958 transitions, 2060 flow [2023-09-01 07:12:14,717 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 844 places, 958 transitions, 2060 flow [2023-09-01 07:12:14,718 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 07:12:14,718 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 844 places, 958 transitions, 2060 flow [2023-09-01 07:12:14,718 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 844 places, 958 transitions, 2060 flow [2023-09-01 07:12:14,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 844 places, 958 transitions, 2060 flow [2023-09-01 07:12:20,052 INFO L130 PetriNetUnfolder]: 2572/12913 cut-off events. [2023-09-01 07:12:20,052 INFO L131 PetriNetUnfolder]: For 2460/2460 co-relation queries the response was YES. [2023-09-01 07:12:20,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15290 conditions, 12913 events. 2572/12913 cut-off events. For 2460/2460 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 121752 event pairs, 1291 based on Foata normal form. 0/10505 useless extension candidates. Maximal degree in co-relation 8152. Up to 2304 conditions per place. [2023-09-01 07:12:21,969 INFO L119 LiptonReduction]: Number of co-enabled transitions 734400 [2023-09-01 07:12:38,299 INFO L134 LiptonReduction]: Checked pairs total: 1883896 [2023-09-01 07:12:38,299 INFO L136 LiptonReduction]: Total number of compositions: 718 [2023-09-01 07:12:38,301 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 07:12:38,302 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@60cdc9ac, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 07:12:38,302 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-01 07:12:38,376 INFO L130 PetriNetUnfolder]: 159/674 cut-off events. [2023-09-01 07:12:38,377 INFO L131 PetriNetUnfolder]: For 182/182 co-relation queries the response was YES. [2023-09-01 07:12:38,377 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:12:38,377 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:12:38,377 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 07:12:38,377 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:12:38,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1625557858, now seen corresponding path program 1 times [2023-09-01 07:12:38,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:12:38,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064969304] [2023-09-01 07:12:38,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:12:38,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:12:38,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 07:12:38,413 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 07:12:38,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 07:12:38,443 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 07:12:38,444 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 07:12:38,444 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-01 07:12:38,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-09-01 07:12:38,444 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 07:12:38,445 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-09-01 07:12:38,445 WARN L233 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 07:12:38,445 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2023-09-01 07:12:38,527 INFO L144 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2023-09-01 07:12:38,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 920 places, 1045 transitions, 2260 flow [2023-09-01 07:12:50,204 INFO L130 PetriNetUnfolder]: 5416/24629 cut-off events. [2023-09-01 07:12:50,204 INFO L131 PetriNetUnfolder]: For 5330/5330 co-relation queries the response was YES. [2023-09-01 07:12:51,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29835 conditions, 24629 events. 5416/24629 cut-off events. For 5330/5330 co-relation queries the response was YES. Maximal size of possible extension queue 363. Compared 264533 event pairs, 3084 based on Foata normal form. 0/20135 useless extension candidates. Maximal degree in co-relation 15270. Up to 5120 conditions per place. [2023-09-01 07:12:51,390 INFO L82 GeneralOperation]: Start removeDead. Operand has 920 places, 1045 transitions, 2260 flow [2023-09-01 07:12:51,901 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 920 places, 1045 transitions, 2260 flow [2023-09-01 07:12:51,901 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 07:12:51,901 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 920 places, 1045 transitions, 2260 flow [2023-09-01 07:12:51,901 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 920 places, 1045 transitions, 2260 flow [2023-09-01 07:12:51,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 920 places, 1045 transitions, 2260 flow [2023-09-01 07:13:03,937 INFO L130 PetriNetUnfolder]: 5416/24629 cut-off events. [2023-09-01 07:13:03,937 INFO L131 PetriNetUnfolder]: For 5330/5330 co-relation queries the response was YES. [2023-09-01 07:13:05,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29835 conditions, 24629 events. 5416/24629 cut-off events. For 5330/5330 co-relation queries the response was YES. Maximal size of possible extension queue 363. Compared 264533 event pairs, 3084 based on Foata normal form. 0/20135 useless extension candidates. Maximal degree in co-relation 15270. Up to 5120 conditions per place. [2023-09-01 07:13:08,129 INFO L119 LiptonReduction]: Number of co-enabled transitions 890800 [2023-09-01 07:13:26,215 INFO L134 LiptonReduction]: Checked pairs total: 2298239 [2023-09-01 07:13:26,215 INFO L136 LiptonReduction]: Total number of compositions: 783 [2023-09-01 07:13:26,216 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 07:13:26,217 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@60cdc9ac, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 07:13:26,217 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-01 07:13:26,306 INFO L130 PetriNetUnfolder]: 191/798 cut-off events. [2023-09-01 07:13:26,306 INFO L131 PetriNetUnfolder]: For 252/252 co-relation queries the response was YES. [2023-09-01 07:13:26,306 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:13:26,306 INFO L208 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:13:26,307 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 07:13:26,307 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:13:26,307 INFO L85 PathProgramCache]: Analyzing trace with hash 496902245, now seen corresponding path program 1 times [2023-09-01 07:13:26,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:13:26,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927563871] [2023-09-01 07:13:26,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:13:26,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:13:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 07:13:26,344 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 07:13:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 07:13:26,383 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 07:13:26,383 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 07:13:26,383 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-01 07:13:26,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-09-01 07:13:26,384 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 07:13:26,384 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-09-01 07:13:26,384 WARN L233 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 07:13:26,384 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2023-09-01 07:13:26,473 INFO L144 ThreadInstanceAdder]: Constructed 11 joinOtherThreadTransitions. [2023-09-01 07:13:26,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 996 places, 1132 transitions, 2462 flow [2023-09-01 07:13:52,248 INFO L130 PetriNetUnfolder]: 11588/48377 cut-off events. [2023-09-01 07:13:52,249 INFO L131 PetriNetUnfolder]: For 11539/11539 co-relation queries the response was YES. [2023-09-01 07:13:57,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59741 conditions, 48377 events. 11588/48377 cut-off events. For 11539/11539 co-relation queries the response was YES. Maximal size of possible extension queue 709. Compared 582509 event pairs, 7181 based on Foata normal form. 0/39749 useless extension candidates. Maximal degree in co-relation 29813. Up to 11264 conditions per place. [2023-09-01 07:13:57,476 INFO L82 GeneralOperation]: Start removeDead. Operand has 996 places, 1132 transitions, 2462 flow [2023-09-01 07:13:59,380 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 996 places, 1132 transitions, 2462 flow [2023-09-01 07:13:59,380 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 07:13:59,380 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 996 places, 1132 transitions, 2462 flow [2023-09-01 07:13:59,381 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 996 places, 1132 transitions, 2462 flow [2023-09-01 07:13:59,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 996 places, 1132 transitions, 2462 flow [2023-09-01 07:14:24,540 INFO L130 PetriNetUnfolder]: 11588/48377 cut-off events. [2023-09-01 07:14:24,541 INFO L131 PetriNetUnfolder]: For 11539/11539 co-relation queries the response was YES. [2023-09-01 07:14:27,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59741 conditions, 48377 events. 11588/48377 cut-off events. For 11539/11539 co-relation queries the response was YES. Maximal size of possible extension queue 709. Compared 582509 event pairs, 7181 based on Foata normal form. 0/39749 useless extension candidates. Maximal degree in co-relation 29813. Up to 11264 conditions per place. [2023-09-01 07:14:33,915 INFO L119 LiptonReduction]: Number of co-enabled transitions 1062160 [2023-09-01 07:14:50,855 INFO L134 LiptonReduction]: Checked pairs total: 2717863 [2023-09-01 07:14:50,856 INFO L136 LiptonReduction]: Total number of compositions: 838 [2023-09-01 07:14:50,857 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 07:14:50,858 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@60cdc9ac, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 07:14:50,858 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-01 07:14:50,994 INFO L130 PetriNetUnfolder]: 227/933 cut-off events. [2023-09-01 07:14:50,994 INFO L131 PetriNetUnfolder]: For 341/341 co-relation queries the response was YES. [2023-09-01 07:14:50,994 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:14:50,994 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:14:50,994 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 07:14:50,994 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:14:50,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1813134851, now seen corresponding path program 1 times [2023-09-01 07:14:50,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:14:50,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049904087] [2023-09-01 07:14:50,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:14:50,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:14:51,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 07:14:51,035 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 07:14:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 07:14:51,072 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 07:14:51,072 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 07:14:51,073 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-01 07:14:51,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-09-01 07:14:51,073 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 07:14:51,074 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-09-01 07:14:51,074 WARN L233 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 07:14:51,074 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2023-09-01 07:14:51,166 INFO L144 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2023-09-01 07:14:51,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1072 places, 1219 transitions, 2666 flow [2023-09-01 07:15:49,330 INFO L130 PetriNetUnfolder]: 24928/96701 cut-off events. [2023-09-01 07:15:49,330 INFO L131 PetriNetUnfolder]: For 24928/24928 co-relation queries the response was YES. [2023-09-01 07:16:02,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121392 conditions, 96701 events. 24928/96701 cut-off events. For 24928/24928 co-relation queries the response was YES. Maximal size of possible extension queue 1339. Compared 1274392 event pairs, 16398 based on Foata normal form. 0/79843 useless extension candidates. Maximal degree in co-relation 59717. Up to 24576 conditions per place. [2023-09-01 07:16:02,577 INFO L82 GeneralOperation]: Start removeDead. Operand has 1072 places, 1219 transitions, 2666 flow [2023-09-01 07:16:06,128 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1072 places, 1219 transitions, 2666 flow [2023-09-01 07:16:06,128 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 07:16:06,128 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1072 places, 1219 transitions, 2666 flow [2023-09-01 07:16:06,129 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1072 places, 1219 transitions, 2666 flow [2023-09-01 07:16:06,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1072 places, 1219 transitions, 2666 flow [2023-09-01 07:17:03,499 INFO L130 PetriNetUnfolder]: 24928/96701 cut-off events. [2023-09-01 07:17:03,500 INFO L131 PetriNetUnfolder]: For 24928/24928 co-relation queries the response was YES. [2023-09-01 07:17:16,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121392 conditions, 96701 events. 24928/96701 cut-off events. For 24928/24928 co-relation queries the response was YES. Maximal size of possible extension queue 1339. Compared 1274392 event pairs, 16398 based on Foata normal form. 0/79843 useless extension candidates. Maximal degree in co-relation 59717. Up to 24576 conditions per place. [2023-09-01 07:17:32,896 INFO L119 LiptonReduction]: Number of co-enabled transitions 1248480 [2023-09-01 07:17:52,153 INFO L134 LiptonReduction]: Checked pairs total: 2869246 [2023-09-01 07:17:52,153 INFO L136 LiptonReduction]: Total number of compositions: 900 [2023-09-01 07:17:52,155 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-09-01 07:17:52,155 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@60cdc9ac, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 07:17:52,155 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-01 07:17:52,296 INFO L130 PetriNetUnfolder]: 269/1084 cut-off events. [2023-09-01 07:17:52,296 INFO L131 PetriNetUnfolder]: For 452/452 co-relation queries the response was YES. [2023-09-01 07:17:52,296 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 07:17:52,296 INFO L208 CegarLoopForPetriNet]: trace histogram [13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-09-01 07:17:52,297 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 07:17:52,297 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 07:17:52,297 INFO L85 PathProgramCache]: Analyzing trace with hash -892996127, now seen corresponding path program 1 times [2023-09-01 07:17:52,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 07:17:52,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217653652] [2023-09-01 07:17:52,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 07:17:52,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 07:17:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 07:17:52,337 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 07:17:52,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 07:17:52,377 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 07:17:52,377 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 07:17:52,377 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-09-01 07:17:52,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-09-01 07:17:52,378 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 07:17:52,378 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-09-01 07:17:52,379 WARN L233 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2023-09-01 07:17:52,379 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2023-09-01 07:17:52,478 INFO L144 ThreadInstanceAdder]: Constructed 13 joinOtherThreadTransitions. [2023-09-01 07:17:52,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1148 places, 1306 transitions, 2872 flow